JP4953976B2 - 逆先端バッフル式翼形部 - Google Patents
逆先端バッフル式翼形部 Download PDFInfo
- Publication number
- JP4953976B2 JP4953976B2 JP2007211197A JP2007211197A JP4953976B2 JP 4953976 B2 JP4953976 B2 JP 4953976B2 JP 2007211197 A JP2007211197 A JP 2007211197A JP 2007211197 A JP2007211197 A JP 2007211197A JP 4953976 B2 JP4953976 B2 JP 4953976B2
- Authority
- JP
- Japan
- Prior art keywords
- tip
- rib
- airfoil
- baffle
- tip baffle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/12—Blades
- F01D5/14—Form or construction
- F01D5/20—Specially-shaped blade tips to seal space between tips and stator
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/12—Blades
- F01D5/14—Form or construction
- F01D5/141—Shape, i.e. outer, aerodynamic form
- F01D5/145—Means for influencing boundary layers or secondary circulations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2250/00—Geometry
- F05D2250/70—Shape
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/60—Efficient propulsion technologies, e.g. for aircraft
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Description
12 翼形部
14 プラットフォーム
16 支持ダブテール
18 燃焼ガス
20 正圧側面
22 負圧側面
24 前縁
26 後縁
28 翼形部根元
30 先端
32 冷却回路
34 冷却空気
36 第1の先端リブ
38 第2の先端リブ
40 先端フロア
42 先端バッフル
44 第1の先端ポケット
46 第2の先端ポケット
48 第1の側面
50 第2の側面
52 隆起部
54 タービンシュラウド
56 弓形フレア
58 ギャップ
Claims (8)
- 翼形部(12)と、プラットフォーム(14)と、一体形ダブテール(16)とを含み、
前記翼形部(12)が、前縁及び後縁(24、26)間で翼弦にわたって延びかつ根元(28)から先端(30)まで翼長にわたって延びる対向する正圧及び負圧側面(20、22)を有し、
前記先端(30)が、それぞれ前記正圧及び負圧側面(20、22)に沿って先端フロア(40)から延びる第1及び第2のリブ(36、38)を含み、
前記第1及び第2のリブ(36、38)が、前記対向する前縁及び後縁(24、26)において互いに接合されかつ翼厚方向に間隔を置いて配置されて先端バッフル(42)を含み、
前記先端バッフル(42)が、前記第1のリブ(36)とは逆輪郭にて翼弦方向に延びて該第1のリブに沿って第1のポケット(44)を形成し、また前記第2のリブ(38)とは逆輪郭にて翼弦方向に延びて該第2のリブに沿って第2のポケット(46)を形成し、
前記先端バッフル(42)が、逆輪郭にて前記第1のリブ(36)に面する第1の側面(48)と、逆輪郭にて前記第2のリブ(38)に面する第2の側面(50)とを含み、
前記翼形部(12)が、前記前縁(24)から前記負圧側面(22)内の隆起部(52)における最大幅までその幅が後方に増大し、次に前記後縁(26)まで収束し、
前記先端バッフル(42)が、前記前縁(24)及び隆起部(52)間で始まり、前記隆起部(52)及び後縁(26)間で終端する
ことを特徴とする、タービンブレード(10)。 - 前記先端バッフル(42)が、前記隆起部(52)の近くで前記第2のリブ(38)と一体形として始まり、前記先端(30)を前記第1及び第2のポケット(44、46)に二分する、請求項1記載のブレード。
- 前記第1及び第2のポケット(44、46)が、それぞれ前記先端バッフル(42)の対向する側面(48、50)に沿って前記負圧側面(22)から後方に互い逆に収束及び発散する、請求項2記載のブレード。
- 前記第1のポケット(44)が、その後端部まで後方に収束し、
前記第2のポケット(46)が、その後端部まで後方に収束する、
請求項3記載のブレード。 - 前記先端バッフル(42)が、前記第2のリブ(38)と一体形として終端し、
前記第1のポケット(44)が、そこから後方に連続する、
請求項3記載のブレード。 - 前記先端バッフル(42)が、前記第1及び第2のリブ(36、38)の翼厚方向間で終端し、
前記第2のポケット(46)が、前記第1のポケット(44)と流れ連通状態で終端し、
前記第1のポケット(44)が、そこから後方に連続する、
請求項3記載のブレード。 - 前記先端バッフル(42)の第1の側面(48)が、該先端バッフルの前方部分に沿って凸面形でありかつ前記第1のリブ(36)の凸面形内側面に面し、
前記先端バッフル(42)の第2の側面(50)が、該先端バッフルの前方部分に沿って凹面形でありかつ前記第2のリブ(38)の凹面形内側面に面する、
請求項3記載のブレード。 - 前記先端バッフル(42)の第1の側面(48)が、該先端バッフルの後方部分に沿って凹面形でありかつ前記第1のリブ(36)の凸面形内側面に面し、
前記先端バッフル(42)の第2の側面(50)が、該先端バッフルの後方部分に沿って凸面形でありかつ前記第2のリブ(38)に面する、
請求項3記載のブレード。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/507,132 US7607893B2 (en) | 2006-08-21 | 2006-08-21 | Counter tip baffle airfoil |
US11/507,132 | 2006-08-21 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2008051098A JP2008051098A (ja) | 2008-03-06 |
JP4953976B2 true JP4953976B2 (ja) | 2012-06-13 |
Family
ID=38689442
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007211197A Expired - Fee Related JP4953976B2 (ja) | 2006-08-21 | 2007-08-14 | 逆先端バッフル式翼形部 |
Country Status (5)
Country | Link |
---|---|
US (1) | US7607893B2 (ja) |
EP (1) | EP1895101B1 (ja) |
JP (1) | JP4953976B2 (ja) |
CN (1) | CN101131098B (ja) |
CA (1) | CA2596782C (ja) |
Families Citing this family (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2907157A1 (fr) * | 2006-10-13 | 2008-04-18 | Snecma Sa | Aube mobile de turbomachine |
GB0813556D0 (en) | 2008-07-24 | 2008-09-03 | Rolls Royce Plc | A blade for a rotor |
US8061990B1 (en) * | 2009-03-13 | 2011-11-22 | Florida Turbine Technologies, Inc. | Turbine rotor blade with low cooling flow |
US8186965B2 (en) * | 2009-05-27 | 2012-05-29 | General Electric Company | Recovery tip turbine blade |
JP5591042B2 (ja) * | 2010-09-17 | 2014-09-17 | 三菱重工業株式会社 | タービン |
US9051843B2 (en) | 2011-10-28 | 2015-06-09 | General Electric Company | Turbomachine blade including a squeeler pocket |
GB201121531D0 (en) | 2011-12-15 | 2012-01-25 | Rolls Royce Plc | Aerofoil blade or vane |
US9091177B2 (en) | 2012-03-14 | 2015-07-28 | United Technologies Corporation | Shark-bite tip shelf cooling configuration |
US9228442B2 (en) | 2012-04-05 | 2016-01-05 | United Technologies Corporation | Turbine airfoil tip shelf and squealer pocket cooling |
US9284845B2 (en) | 2012-04-05 | 2016-03-15 | United Technologies Corporation | Turbine airfoil tip shelf and squealer pocket cooling |
US9470096B2 (en) | 2012-07-26 | 2016-10-18 | General Electric Company | Turbine bucket with notched squealer tip |
US9045988B2 (en) * | 2012-07-26 | 2015-06-02 | General Electric Company | Turbine bucket with squealer tip |
CN102943694B (zh) * | 2012-12-05 | 2015-02-18 | 沈阳航空航天大学 | 动叶叶顶隔板式迷宫结构 |
US20140161585A1 (en) * | 2012-12-10 | 2014-06-12 | General Electric Company | Turbo-machine component and method |
CN103883361B (zh) * | 2012-12-20 | 2016-05-04 | 中航商用航空发动机有限责任公司 | 涡轮叶片 |
US8920124B2 (en) | 2013-02-14 | 2014-12-30 | Siemens Energy, Inc. | Turbine blade with contoured chamfered squealer tip |
CA2900221C (en) | 2013-02-26 | 2021-01-19 | Ted Joseph Freeman | Adjustable turbine vanes with sealing device and corresponding method |
CN105899761B (zh) | 2014-01-17 | 2017-10-17 | 通用电气公司 | 带有张开部的陶瓷基复合材料涡轮叶片凹槽状叶顶及其方法 |
FR3024749B1 (fr) * | 2014-08-05 | 2016-07-22 | Snecma | Baignoire de sommet d'aubes d'une turbine de turbomachine |
US10370979B2 (en) | 2015-11-23 | 2019-08-06 | United Technologies Corporation | Baffle for a component of a gas turbine engine |
US20170145827A1 (en) * | 2015-11-23 | 2017-05-25 | United Technologies Corporation | Turbine blade with airfoil tip vortex control |
US10677066B2 (en) * | 2015-11-23 | 2020-06-09 | United Technologies Corporation | Turbine blade with airfoil tip vortex control |
US10253637B2 (en) | 2015-12-11 | 2019-04-09 | General Electric Company | Method and system for improving turbine blade performance |
US10329922B2 (en) * | 2016-02-09 | 2019-06-25 | General Electric Company | Gas turbine engine airfoil |
US10184342B2 (en) | 2016-04-14 | 2019-01-22 | General Electric Company | System for cooling seal rails of tip shroud of turbine blade |
US10605090B2 (en) * | 2016-05-12 | 2020-03-31 | General Electric Company | Intermediate central passage spanning outer walls aft of airfoil leading edge passage |
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-
2006
- 2006-08-21 US US11/507,132 patent/US7607893B2/en active Active
-
2007
- 2007-08-09 CA CA2596782A patent/CA2596782C/en not_active Expired - Fee Related
- 2007-08-14 JP JP2007211197A patent/JP4953976B2/ja not_active Expired - Fee Related
- 2007-08-20 EP EP07114593.2A patent/EP1895101B1/en not_active Expired - Fee Related
- 2007-08-21 CN CN2007101417356A patent/CN101131098B/zh active Active
Also Published As
Publication number | Publication date |
---|---|
CN101131098A (zh) | 2008-02-27 |
JP2008051098A (ja) | 2008-03-06 |
CA2596782A1 (en) | 2008-02-21 |
EP1895101A2 (en) | 2008-03-05 |
CN101131098B (zh) | 2012-07-04 |
US20080044291A1 (en) | 2008-02-21 |
EP1895101B1 (en) | 2016-03-09 |
EP1895101A3 (en) | 2010-10-27 |
CA2596782C (en) | 2015-12-01 |
US7607893B2 (en) | 2009-10-27 |
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